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Retirement Benefits Plans Retirement Benefits Plans - Employer Contributions to Retirement Benefits Plans (Details 9) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2014
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Dec. 31, 2013
|
Dec. 31, 2012
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Dec. 31, 2011
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| Defined Benefit Plans and Other Postretirement Benefit Plans | ||||
| Funding postretirement Medicare Part D prescription drug benefits into VEBA trust | $ 154 | |||
| VEBA target trust allocation in diversified global equities | 50.00% | |||
| VEBA target trust allocation in fixed income securities | 50.00% | |||
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United States pension plans [Member]
|
||||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||||
| Employer contributions to pension plans | 254 | 196 | 311 | 264 |
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Non-United States pension plans [Member]
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||||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||||
| Employer contributions to pension plans | 108 | 145 | 102 | 108 |
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Total pension plans [Member]
|
||||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||||
| Employer contributions to pension plans | $ 362 | $ 341 | $ 413 | $ 372 |